Small Caps Put on Their Best Monthly Showing Since 2020. Bank of America Says There's More Upside Ahead

Why It Matters

The continued outperformance of small caps signals a shift in growth dynamics, offering investors higher return potential and diversification benefits as large‑cap momentum eases. Institutional endorsement of targeted ETFs provides actionable pathways for capitalizing on this trend.

Key Takeaways

• Russell 2000 rose 12% in April, best since 2020.
• iShares US Small‑Cap Equity Factor ETF up 11% YTD, 0.15% fee.
• Janus Henderson Small Cap Growth Alpha ETF leads earnings revisions, 14% YTD.
• Avantis International Small Cap Value ETF provides low‑correlation global exposure.
• Advisors recommend 5‑10% portfolio allocation to small caps for diversification.

Pulse Analysis

The April surge in the Russell 2000 reflects a broader rebalancing in equity markets, where investors are gravitating toward smaller, more nimble companies that are benefitting from a rebound in earnings per share and a resurgence in manufacturing output. Bank of America’s research team, led by Jill Carey Hall, points to the sector’s ability to outpace the S&P 500 as a sign that the earnings recovery is gaining traction across the economy, especially in industries that are capital‑intensive yet agile enough to adapt to shifting demand patterns.

To translate this macro tailwind into portfolio gains, BofA highlighted three exchange‑traded funds that each capture a distinct angle of the small‑cap rally. The iShares US Small‑Cap Equity Factor ETF (SMLF) boasts an 11% year‑to‑date return, a 0.15% expense ratio, and a profit‑rate exceeding 80% of its holdings—far higher than the broader Russell 2000. Janus Henderson’s Small Cap Growth Alpha ETF (JSML) leads the pack in earnings‑revision activity, a metric BofA deems an “all‑weather” driver, delivering a 14% YTD gain. Meanwhile, the Avantis International Small‑Cap Value ETF (AVDV) offers exposure to undervalued non‑U.S. small caps, delivering a 13% YTD return with lower market correlation, appealing to investors seeking geographic diversification.

For the prudent investor, the consensus among financial planners is to treat small caps as a complementary slice rather than a core holding. A 5%‑10% allocation can enhance diversification, reduce reliance on large‑cap growth stocks, and capture upside from earnings acceleration. However, the inefficiencies inherent in the asset class—higher volatility and less analyst coverage—mean active management or selective ETF exposure may be preferable to a passive index approach. As the earnings and manufacturing recovery deepens, disciplined exposure to small caps could become a key source of incremental portfolio performance.